Analysis

  • max time kernel
    291s
  • max time network
    300s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-11-2024 16:13

General

  • Target

    AsyncClient.exe

  • Size

    48KB

  • MD5

    3b8c2128c792717f9acf8c2e467c7870

  • SHA1

    60d5a9158f289cf0ebfb298a573670a4a6d432da

  • SHA256

    b72657253ec1cc41282ec74998c7ab1ec15aaedee97b2aa065c8e7042a4618fc

  • SHA512

    b5b1705ad9add0077778c2069d767affdfd3f8ca588c7c8a042a0206a7e588ab29f88ce035140ef307b35b00f62852404fd34bfcb127e47e4a80ea8219de83ac

  • SSDEEP

    768:uuAtPTgoRzbWUnd9rmo2qrXmnjiklFyNPIh2hky0bdcnKOmWkETBL/B/BDZXv:uuAtPTgG/29+Jqh2gbdcKOkItBJdXv

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

s3yAGXpoKeC2

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/3sxpqx0C

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
    "C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/792-0-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/792-1-0x0000000000990000-0x00000000009A2000-memory.dmp

    Filesize

    72KB

  • memory/792-2-0x0000000074910000-0x00000000750C1000-memory.dmp

    Filesize

    7.7MB

  • memory/792-3-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/792-4-0x0000000074910000-0x00000000750C1000-memory.dmp

    Filesize

    7.7MB